铁道科学与工程学报2017，Vol.14Issue(7)：1382-1390,9.
煤矸石组合式加筋挡土墙现场试验研究
Study of coal gangue composite reinforced retaining wall embankment slope by using site tests
摘要
Abstract
Based on site tests of two reinforced retaining wall sections of Anhua-Shaoyang expressway at k128+675 and k128+685, the working performance and stress deformation characteristics of set-back gabion box reinforced retaining wall with coal gangue used as filling materials were studied. The horizontal soil pressure, lateral deformation, vertical soil pressure and material strain distribution of the reinforced retaining wall were analyzed. The analysis results show that the lateral earth pressure on the back of the wall increases linearly with the height of fill and the rate of increase rises after filling soil in front of the wall; the vertical soil pressure follows non-uniform distribution in the back of the wall, the peak in 0.35 times of the gabion from metope; reinforcement material strain distribution in the middle is large and the side is small along direction of reinforced material laying; the strain is large from 2.8-4.2 m segment in wall back; retaining wall front backfill can restrict lateral displacement and prevent wall drum belly effectively during construction. The results provide reference to similar coal gangue filling reinforced retaining walls.关键词
加筋挡土墙/筋材/煤矸石/土工格宾Key words
reinforced retaining wall/site test/coal gangue/gabion分类
建筑与水利引用本文复制引用
杨果林,张梓振,杜勇立,林宇亮..煤矸石组合式加筋挡土墙现场试验研究[J].铁道科学与工程学报,2017,14(7):1382-1390,9.基金项目
交通运输部联合攻关课题资助项目(2010-353-343-290) （2010-353-343-290）
国家自然科学基金资助项目(51278499, 51478484) （51278499, 51478484）
